n. A shell of any kind.n. Specifically, a large marine shell, especially that of the Strombus gigas, sometimes called fountain-shell, from its use in gardens.n. A spiral shell fabled to have been used by the Tritons as a trumpet, probably of the kind now constituting the genus Triton, and used as a musical instrument in the South Sea islands. Also conch-shell.n. A trumpet in the form of a sea-shell. Also called Triton's-horn.n. The external portion of the ear; the concha.n. In architecture, the plain, ribless, concave surface of a vault or pendentive; the semidome of an apse; the apse itself. See apse. Also called concha.n. [Also written conk, conck. konk.] One of the lower class of inhabitants of the Bahamas, and of the keys on the Florida reef: so named from their extensive use of the flesh from conchs as food.n. One of an inferior class of white inhabitants of some parts of North Carolina.n. In the cephalopod mollusks, the postembryonic shell: contrasted with protoconch or embryonal shell, and with shell, a term which loosely covers the entire external skeleton.n. The whelk, Fulgur carican. the helmet-shell, Cassis.n. In Roman antiquity, the name for various small vessels used for oil, salt, etc.n. Same as conk.n. Abbreviations of conchology.